"The life [of St. Declan] herewith presented was copied in 1629 by Brother Michael O'Clery ... from an older ms. of Eochy O'Heffernan's dated 1582 ... apparently O'Clery did more than transcribe, he re-edited, as was his wont, into the literary irish of his day ... The "Life" [of St. Mochuda of Carthach] ... is in its present form a comparatively late production, it was transcribed by [John Murphy] between 1740 and 1750".--Introduction
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O'Clery, Michael, 1575-1643; Power, P. (Patrick), 1862-1951; Royal Irish Academy. Library. Manuscript. M. 23, 50; Bibliothèque royale Albert Ier. Manuscript. 4190-4200